CONTENTS. 



Page 



No. 1. — Reports on the Dredging Operations off the West Coast of Central 

 America to tlie Galapagos, to the West Coast of Mexico, anil in the Gulf of 

 California, in charge of Alexander Agassiz, carrier! on by tlie U. S. Fish 

 Commission Steamer " Albatross," during 1891, Lieut. Commander Z. L. 

 Tanner, U. S. N., commanding. VII. The Orthoptera of the Galapagos 

 Islands. By Samuel H. Scudder. (12 Plates.) September, 1893 ... 1 



No. 2. — Reports on the Dredging Operations off tlie West Coast of Central 

 America to the Galapagos, to the West Coast of Mexico, and in the Gulf of 

 California, in charge of Alexander Agassiz, carried on by the U. S. Fish 

 Commission Steamer "Albatross," during 1891, Lieut. Commander Z. L. 

 ■Tanner, U. S. N., commanding. VIII. Compte-Rendu sur les Pantopodes. 

 Par W. M. ScHiMKEwiTscH. (2 Plates.) December, 1893 27 



No. 3. — A Method of Orienting small Objects for the Microtome. By W. 

 McM. WooDWORTH. December, 1893 45 



No. 4. — Reports on the Dredging Operations off the West Coast of Central 

 America to the Galapagos, to the West Coast of Mexico, and in the Gulf 

 of California, in charge of Alexander Agassiz, carried on by the U. S. 

 Fish , Commission Steamer "Albatross," during 1891, Lieut. Commander 

 Z. L. Tanner, U. S. N., commanding. IX. Report on the Turbellaria. 

 By W. McM. WooDwORTH. (1 Plate.) January, 1894 49 



No. 5. — Reports on the Dredging Operations off the West Coast of Central 

 America to the Galapagos, to the West Coast of Mexico, and in the Gulf of 

 California, in charge of Alexander Agassiz, carried on by the U. S. Fish 

 Commission Steamer "Albatross," during 1891, Lieut. Commander Z. L. 

 Tanner, U. S. N., commanding. X. Note Preliminaire sur les Alcyonaires. 

 Par Tiieophile Studer. January, 1894 53 



No. 6. — Reports on the Dredging Operations off the West Coast of Central 

 America to the Galapagos, to the West Coast of Mexico, and in the Gulf of 

 California, in charge of Alexander Agassiz, carried on by the U. S. Fish 

 Commission Steamer " Albatross," during 1891, Lieut. Commander Z. L. 

 Tanner, U. S. N., commanding. XL The Hydroids. By Samuel F. 

 Clarke. (5 Plates.) February, 1894 71 



No. 7. — Contributions from the Zotilogical Laboratory, under the Direction 

 of E. L. Mark. XLI. The Origin of the Endocardium in Bony Fishes. 

 By A. T. Holurook. (5 Plates.) August, 1894 79 



